Azimuthal Asymmetries in Hadronic Final States at HERA
Abstract
The distribution of hadrons produced in deeply inelastic electron-proton collisions depends on the azimuthal angle between lepton scattering plane and hadron production plane in the photon-proton centre-of-mass frame. In addition to the well known up-down asymmetry induced by the azimuthal dependence of the Born level subprocess, there is also a non-vanishing left-right asymmetry, provided the incoming electron is polarized. This asymmetry is time-reversal-odd and induced by absorptive corrections to the Born level process. We investigate the numerical magnitude of azimuthal asymmetries in semi-inclusive hadron production at HERA with particular emphasis on a possible determination of the time-reversal-odd asymmetry.
Keywords
Cite
@article{arxiv.hep-ph/9906503,
title = {Azimuthal Asymmetries in Hadronic Final States at HERA},
author = {M. Ahmed and T. Gehrmann},
journal= {arXiv preprint arXiv:hep-ph/9906503},
year = {2009}
}
Comments
9 pages, LaTeX, 7 figures included, The complete paper, including figures, is also available via anonymous ftp at ftp://ttpux2.physik.uni-karlsruhe.de/ttp99/ttp99-29/ or via www at http://www-ttp.physik.uni-karlsruhe.de/Preprints/